I had to buy it twice, because a friend of mine borrowed my copy and then disappeared from my life. I think she may have disappeared to avoid giving the book back. But it all evens out - I still have her copy of Tom Robbins' Skinny Legs and All.
Have you read Tom Wolfe's Electric Kool-Aid Acid Test? He tells the other side of the story of the party the Merry Pranksters threw for the Hell's Angels, it's kind of cool to be able to read both accounts.